6.13 STALL PREVENTION LEVEL WHILE RUNNING
Cn-30 (Sn-10)
If the inverter output current exceeds Cn-30 stall prevention level for more than 100ms, the output
frequency will decrease until output current is below value in Cn-30. Once current has dropped below
set value in Cn-30, the inverter rated current will increase back to set value operation. Inverter rated
current is regarded as 100%.
OUTPUT
FREQUENCY
OUTPUT
CURRENT
Cn-30
100 ms
Sn-10 = 00 XX : DECEL TIME bn-02 SET
VALUE
t
t
(Example) Stall prevention level while ring running 120%.
Decel time bn-04 set value.
Keypad Operation
Digital Operator Display
Remarks
Displayed for 0.5
second. Confirm the
display for each
constant.
Displayed for 0.5
second. Confirm the
display for each
constant.
DSPL
RESET
DATA
ENTER
DATA
ENTER
DSPL
DATA
ENTER
RESET
-
-
DATA
ENTER
Application Example
Rotation speed should be automatically reduced for rated
operation regardless of possible overload, and on return to normal
load, the previous rotation speed should be maintained.
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